Same difference with keyboards. The keyboard pattern we have is solely because the keyboard comes from typewriters which were built so that common letters wouldn't be next to each other, to prevent too many instances of the print arms swinging together and hitting each other. For typing purposes, it's actually a terrible design, but it's a design that worked for the technology of the time period, and we haven't really taken any effort to retrain the entire english-speaking population to use a better system.